Casting box



CASTING BOX Filed March 29, 1930 2 Sheets-Sheet 1 Inventor A tiom ey April 26, 1932. G..A. STOFFEL 1,355,531

CASTING BOX Filed March 29, 1930 2 Sheets-Sheet 2 v I V,

6 all/ 6 H jnentor gaoyc Patented Apr. 26, 1932 UNITED era-T es GEORGE A. sror'rEL, or HUNTINGTON, mn'mnaf CASTING: Box

Application filedm'arch 29,1930, "Serial m; 440,024

This invention relates broadly to casting boxes, and has more particular reference to the provision of a curved casting'box for cast- I ing types for use on certain typesof printing 5 presses, especially'those printing presses that are used for printing envelopes and theflike.

A further object of this invention is toprovide a curved castingbox for'making curved plates embodying a frame, a pair of complem mental members comprising male and female members, mounted. on the frame and adapted tobe clamped together, the structure of the clamping members being suohthat a matof the type which has been previously set in 5 the regular way is inserted therein, together with a plate conformably'fitting between said members and against the mat, said plate having an opening arranged therein through which one face of the mat will protrude when all the parts are so clamped. r p

A still further object of the invention is to provide a device of this character, which is simple in construction, thoroughly reliable', practical, and eflicient in operation, and

sired.

In the drawings:

Figure 1 is a side elevation of theinven tion showing the partsprior to being clamped together.

Figure 2 is a top plan View thereof.

Figure 3 is a top plan view of the device showing the device in clamped relation. 1 Figure 4 is-a vertical sectional view taken substantially on the line 4 t of Figure 3.

Figure 5 is a perspective view of the apertured plate. r Y With reference more in'detail to'thedr'a'wings, it will be seen that my improved casting the reference characters 7 and 8 respectively.

The members 7 and 8-are in the 'natureof clamping plates, the member being the I female clamping plate, and them'em'berS bet 'ing the male clamping plate. The female otherwise well adapted for the purpose -de plate 7 at its lower end is bolted to the side members 5+5 of the framepreferably'by, two bolts 9 for securing thejfemalc member 7 on the frame obliquely orsoIner 7 what at an incline. I 1,

The male member Sat its lower end is piv- '50 oted between the side members of the frame through'ithemediumof a pivot bolt 10 pass ing through said side members and the lower. I

end of said male member 8. Y I 6 The female member 7 has the intermediate portion thereof designatedby the reference character a concaved to' provide a recess of: substantially arcuate formation in cross sec tion anda pair of side wings 5+6. "The g member 8 is similarlyformed, havingthe convex intermediate portion a and theside' wings'b. Thus it will be seen that the cons vex intermediate portion a" is adapted to be receivedin theintermediate'concave portion. a of the female member when the said mem-- bers 7 and 8 are in clamped position. f

As shown to advantage in Figure '1, concaved portion a and the convex portion a respectively terminate inwardly from the lower-end of the respective members 'l andfi; the construction thus forming on the female member? at the lower end 7 of the "concayed recessa-shoulder 11;

1 Fordisposition between the members m; i 8, there is provided aplate 12jhaving a; concaved inter-mediate portion 13 and side wings 1-4, theconcaved' portion 13 of the" plate "12 beingprovided with 'a substantially rectan gu lar opening at the lower portion thereof .35" as at 1'5. Inthe use of 'my device, the type 'is i sctin the regularfway after which a'mat 16 there 1 of is made; Themat 16- then 'has'its inter-f mediate portion placed 'within the '1 conca'ved" 96 intermediate portion aof'the' female clamp ing men'ibe-r7, withthe opposite edges of the mat overlapplng'theside wings 7) as'clearly suggested in Figure 2. l r

The plate 12is then disposed againstthemat l6ihaving the convex surface of its intermediate portion disposed againstthe inte mediateportionof the mat16, after which the pivotally mounted malemember 8 isswungf to-tha-t position shown iinZFigureA so that its 100 V 5. printing face of the mat is received within intermediate convex part is disposed oppositely the concave part 13 of the plate 12, as clearly suggested in Figures 3 and 4:.

For retaining the parts in this clamped position, the pivotally mounted male member 8 on opposite edges thereof has-pivoted thereto as at 17 one end of a swingable latch memberndesignated generally by the reference character 18. Each latch member 18 comprises a shank having at its free end a handle 19, while intermediate'its' ends, the

' shank is provided with a lower projection 20 for engagement with a pin 21 projecting from a corresponding side of the stationary female clamping member 7 for securing the said members in clamped position.

- The male clamping member 8 adj acent the upper edge of its convex intermediate portion is provided. with a transversely extending opening or slot 22through which hot molten metal isto be poured when the plate 12 and mat-16 are clamped between the members 7 at the same time,will expedite the lifting ofthe plate from between the clamping members 7 and 8 wherebythe plate, when removed,

may be turned upside down to fall upon a table, after which it may be then quickly placed in its former position for forming another printing plate. r

l quent. to the casting of the printing plate.

As is apparent, plate 12 holds the printing mat in position within the clamp and that further the plate 12 provides as it were a tray for lifting the mat from the clamp subse- Further, the size of the opening 15, controls the sizeof the printing face of the mat, since obviously, and as suggested in Figure 1, the

I thisopening 15,

' '1' that printing plates having a curved surface It is also to be understood that this device is capable of use with orwithout an electrical heating element 1 (not shown).

{,From the foregoing then, it will be seen may be cast in a curved casting'box of this character,in an inexpensive manner, with a so cast will be of 'suflicient' durability,

minimum amount'of time and that the plates strength, and otherwise embody the desired quality of such curved printing plates.

,It is thought thatrfrom'the foregoing description, taken in .connection with the acq companying drawings, a clear understanding of the operation, construction, utility and advantages of my invention will be had by those skilled in the art without a more detailed description. 7

It is to be understood thatrthe invention is not limited to the specific form as herein shown and described, but that the same is susceptible to changes in size, shape, and materials used, and other details of construction, as come within the spirit of the invention, and the scope of the appended claims.

Having thus described the invention, what I claimvas new is r v 1. In a'casting box of the character described, a pair of clamping members, one of said members provided with a concaved portion adapted to accommodate the printing mat, an apertured plate adapted to be disposed against the printing mat, within said concaved portion, the other of said clamping members provided with a convex portion adapted to bedisposed oppositely to said plate for accommodating between itself and the plate the molten metal, said first mentioned memberat the lower edge of the concavedportion provided with a shoulder constituting bottom 'forsaid concaved portion and the lower edge of said mat, apertured plate and the convex portion of the said said shoulder. V

' 2. In a castingbox of the character described, apair of clamping -members, one of said members provided with a concaved portion adapted to accommodate the printing mat, an apertured plateadapted to be disposed against the printing mat, within said concaved portion, the other of said clamping members provided with a convex portion adapted to be disposed oppositely to said plate for accommodating between itself and the plate the molten metal, said first mentioned member at the lower edge of the concaved portion provided with a shoulder constituting a bottom for said concaved portion and the lower edge of said mat, apertured plate and the convex portion of the said clamping member being adapted for rest on saidshoulder, latch means for holding said clamping members in clamping relation and said second mentioned clamping member provided with an opening through which the molten metal may be poured be tween said secondclamping member and said apertured plate.

V 3. A casting 'box' of the characterv described comprising a pair of complemental clamping members,one of which is provided with a concaved portion and the other of which is provided with a convex portion complementalto the concaved portion, said clamping member being'adapted for rest on one clamping member adapted to accommodate in the concaved portion thereof the printing mat, and a plate for disposition in said concaved portion intermediate the mat andtheconvex portion of said second clamping member. said plate. being convex, and provided with anaperture for accommodating and regulating the size of'the printing base'of the mat, and said plate at the upper Vii end thereof provided with a. handle having a concaved portion'to provide a pouring spout for the casting box.

4:. A casting box comprising a relatively fixed clamping member provided with a con-.

caved intermediate portion and oppositely extending wings projecting therefrom, said member at the lower end of said concaved.

portion being provided with a shoulder, a printing mat arranged in the concaved portion and having opposite end portions overlapping said wings, a concaved plate adapt ed to fit within the concaved portion of said clamping member in contact with the printing mat, the said plate-provided wit11.anap-,

erture for accommodating the printing surface ofvthe mat, a second clamping member movable toward and away from the first clamping member, said second'clamping portion provided with a convex portion constituting a projection for disposition opposite, said concaved plate and adapted at its-lower edge to rest on said shoulder, said second clamping member having wings projecting from opposite sides thereof for disposition opposite corresponding wings on the first.

mentioned clamping member, said second mentioned clamping member at the upper portion thereof provided with an opening through which molten metal may be poured, i

and said plate at the upper portion thereof provided with a'handle havinga concaved portion to provide a pouring spout, and

means for clamping said clamping members in clamped relation. I

In testimony whereof I afiix my signature.

GEORGE A. STOFFEL. 

